Hydrogenated Thiab Refined Zaub Roj

Cov txheej txheem:

Video: Hydrogenated Thiab Refined Zaub Roj

Video: Hydrogenated Thiab Refined Zaub Roj
Video: Ban on partially hydrogenated oils from June 2021 2024, Kaum ib hlis
Hydrogenated Thiab Refined Zaub Roj
Hydrogenated Thiab Refined Zaub Roj
Anonim

Refined zaub roj yog muab rho tawm los ntawm cov noob ntawm ntau cov nroj tsuag. Lawv cov rog yog polyunsaturated, uas txhais tau hais tias lawv nyob twj ywm ua kua ntawm chav tsev kub.

Muaj ntau ntau hom kev lag luam zoo ntawm cov roj, nrog rau: paj noob hlis, canola, kua taum, pob kws, txiv laum huab xeeb, noob hnav lossis roj saffron.

Cov lus "zaub roj" ua noj ua haus feem ntau hais txog qhov sib xyaw ntawm cov roj sib txawv, uas feem ntau yog ua los ntawm cov khoom noj xibtes, cov pob kws, taum pauv los yog noob paj noob hlis.

Refined ua noj roj yog tsim los ntawm kev ua haujlwm siab, kev siv tshuab thiab tshuaj lom neeg kom rho tawm cov roj los ntawm cov noob. Tus txheej txheem no tshem tawm cov khoom noj kom zoo rau lawv thiab tsim cov khoom kawg, uas yog yooj yim oxidized.

Ntau cov roj uas tau rov qab los ua dua tshiab kuj tseem yog hydrogenated, uas txhais tau hais tias muaj txheej txheem tau ua rau lawv khov kho nyob rau hauv chav tsev kub kom lawv tuaj yeem muag zoo li margarine lossis rog rau ncuav thiab ncuav ncuav. Hydrogenation ntxiv hloov cov fatty acids rau hauv roj, tsim trans-fatty acids uas yog qhov txaus ntshai rau tib neeg kev noj qab haus huv.

Cov roj hydrogenated yog dab tsi?

Ib qho kev piav qhia zoo tshaj plaws rau cov lus nug no yog muaj nyob hauv Sally Fallon phau ntawv, Lus Txog Kev Noj. Nws yog tag nrho ntawm cov ntaub ntawv tseem ceeb thiab cov zaub mov qab thiab muaj txiaj ntsig zoo rau tag nrho tsev neeg.

Margarine
Margarine

Hauv nws peb tuaj yeem nyeem tias cov roj hydrogenated yog cov roj ntuj, feem ntau muab rho tawm los ntawm cov zaub xws li rapeseed, pob kws lossis taum pauv, uas tau muab rhaub thiab hydrogen npuas yog txhaj rau nws kom nws ua kom ruaj khov. Tus txheej txheem no ua rau nws tsis muaj cov qauv tsim qauv qub, uas ua rau lub cev tsis zoo.

Txawm li cas los xij, cov chaw tsim khoom noj khoom siv cov khoom siv hydrogenation, thaum nws txuas lub txee lub neej ntawm cov khoom ntim, ntxiv cov tsw thiab qhov sib xws rau cov roj ntawm tus nqi qis dua. Cov roj ntsha uas pom tau tshaj plaws yog butter margarine.

Dab tsi yog cov siv cov roj hydrogenated?

Nws yog raws nraim li nws lub npe pom zoo, tab sis nws cov hydrogenation yog txheej txheem luv, yog li cov khoom lag luam yog cov roj muaj roj zoo, zoo ib yam li roj roj. Txawm hais tias cov txheej txheem nyuaj, ua kom zoo siab, nws tseem pheej yig dua cov roj butter zoo nkauj lossis qee cov roj thiab kuj yog cov khoom lag luam zoo rau cov neeg tsim khoom noj khoom haus kom nce lawv cov txiaj ntsig.

Cov nqaijrog trans yog dab tsi?

Trans fatty acids yog lwm lub npe rau roj roj ib feem. Lawv tau tsim nyob rau hauv cov txheej txheem ntawm hydrogenation. Trans nqaijrog yog tsim los ntawm kev tawg ntawm tus qauv ua kom muaj lub cev zoo.

Thawj cov txheej txheem sau cia hydrogenation txheej txheem tau ua nyob rau xyoo 1903 los ntawm ib tug txiv neej npe hu ua William Norman. Los ntawm xyoo 1914, Procter & Gamble los txog nrog ntau yam khoom lag luam uas txhawb nqa lub koob npe nrov ntawm cov thev naus laus zis no, thiab nws tau pib ua raws li. Kev hloov pauv ntawm cov rog (trans-fatty acids) tau pom los ua kom lub neej txee ntawm qee cov zaub mov, uas tseem tau xav txog cov khoom lag luam siab dua thiab nce muag ntawm cov tuam txhab tsim khoom.

Tsuas yog ib xyoos tom qab kev qhia txog cov txheej txheem hydrogenation, cov kws kho mob tau pib pom ntau yam teeb meem kev noj qab haus huv rau qhov tsis muaj laj thawj. Tom qab, ib qho txuas tsis tau qhia tau tsim los ntawm cov kabmob thiab kev noj ntawm cov roj hydrogenated no.

Refined roj
Refined roj

Vim li cas cov roj ntshiab thiab trans nqaij tsis zoo?

Cov rog yog qhov tseem ceeb rau kev ua haujlwm ntawm txhua txoj haujlwm hauv lub cev. Txawm li cas los xij, lub cev tsuas yog siv tau thiab ua qee cov roj hauv lawv daim ntawv nyoos, i. roj, txiv roj roj / txiv roj roj, txiv maj phaub roj, thiab lwm yam. Cov txheej txheem ntawm hydrogenation hloov cov qauv tsim qauv, uas ua rau cov nyom thiab cuam tshuam nrog cov txheej txheem hauv lub cev hauv lub cev.

Trans fatty acids uas yog qhov tseem ceeb tshaj plaws hauv kev txhim kho cov kab mob plawv. Ua kom zoo, hydrogenated roj tsis tsuas yog muaj cov rog zoo li no, tab sis cov vitamins, minerals thiab as-ham tau "ua kom zoo", tshem tawm (los ntawm kev siv tshuaj lom neeg) kom nce lawv lub neej. Tib txoj kev yog ua raws thaum rov qab ua kom qab zib thiab hmoov dawb.

Qhov phom sij ntawm cov rog trans yog ntau yam, nrog rau lub cev tsis muaj peev xwm nqus cov rog muaj txiaj ntsig. Cov kab mob sib kis ua rau cov roj ntsha tsis zoo thiab ua rau lawv tsis muaj kev tiv thaiv, muaj lub zog ua haujlwm, uas tso cai rau cov ua xua, carcinogens thiab lwm yam khoom muaj teeb meem cuam tshuam rau lawv ntau dua.

Cov rog pauv thiab ib feem lossis tag nrho cov roj hydrogenated tuaj yeem ua rau: cov rog phaus thiab rog rog, qeeb qeeb metabolism, ntshav qab zib, mob qog, mob plawv thiab mob autoimmune, mob qog nqaij hlav, nce ntawm cov roj (cholesterol) phem, mob caj dab.

Ob hom roj muaj qhov txawv txav ntawm kev ua, tab sis muaj kev phom sij ntau yog cov uas muaj hydrogenated, tsis tsuas yog ua kom zoo zoo.

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